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Code Issues Releases Activity

avformat/seek: Remove always true condition

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Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili
2025-01-24 15:31:20 +08:00
parent ef3ffd8c5c
commit 1c5961e4b4
1 changed files with 10 additions and 12 deletions
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22
libavformat/seek.c
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@ -664,6 +664,9 @@ int av_seek_frame(AVFormatContext *s, int stream_index,
int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts,
int64_t ts, int64_t max_ts, int flags)
{
int dir;
int ret;
if (min_ts > ts || max_ts < ts)
return -1;
if (stream_index < -1 || stream_index >= (int)s->nb_streams)
@ -699,19 +702,14 @@ int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts,
// Fall back on old API if new is not implemented but old is.
// Note the old API has somewhat different semantics.
if (ffifmt(s->iformat)->read_seek || 1) {
int dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
int ret = av_seek_frame(s, stream_index, ts, flags | dir);
if (ret < 0 && ts != min_ts && max_ts != ts) {
ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
if (ret >= 0)
ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
}
return ret;
dir = (ts - (uint64_t)min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0);
ret = av_seek_frame(s, stream_index, ts, flags | dir);
if (ret < 0 && ts != min_ts && max_ts != ts) {
ret = av_seek_frame(s, stream_index, dir ? max_ts : min_ts, flags | dir);
if (ret >= 0)
ret = av_seek_frame(s, stream_index, ts, flags | (dir^AVSEEK_FLAG_BACKWARD));
}
// try some generic seek like seek_frame_generic() but with new ts semantics
return -1; //unreachable
return ret;
}
/** Flush the frame reader. */